单项选择题

Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now listen to the passage. What probably leads people to choose gourmet coffees over regular brands

A.Gourmet coffee is less expensive.
B.Regular brands of coffee have too much caffeine.
C.Gourmet coffee tastes better.
D.Gourmet coffee is grown in the United States.